MESON Chess Problem Database

Problem Display
PID: 51092 (2N2r2/1n1b2b1/2N1R3/1p1k1p2/1P6/3P2n1/1B6/3K2Q1 w - - 0 1)

Angresius, CF

Burnley Express, 1881

2N2r2/1n1b2b1/2N1R3/1p1k1p2/1P6/3P2n1/1B6/3K2Q1

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe6
      • 2.S6e7#
    • 1...Sa5
      • 2.Rd6#
    • 1...Sc5
      • 2.Rd6#
    • 1...Sd6
      • 2.Rxd6#
    • 1...Sd8
      • 2.Rd6#
  • Tries
    • 1.Re5+?
      • 1...Kxc6
        • 2.Qb6#
      • 1...Bxe5!
    • 1.Qe3?
      • threat
        • 2.S6e7#
        • 2.Sb6#
        • 2.S8e7#
      • 1...Rxc8
        • 2.Se7#
      • 1...Bxc6
        • 2.Sb6#
        • 2.Se7#
      • 1...Bxe6
        • 2.S6e7#
      • 1...Bxc8
        • 2.Se7#
      • 1...Be5
        • 2.Qxe5#
      • 1...Sd6
        • 2.S6e7#
        • 2.S8e7#
        • 2.Rxd6#
      • 1...Rf7
        • 2.Sb6#
      • 1...Re8
        • 2.Sb6#
      • 1...Bd4
        • 2.S6e7#
        • 2.S8e7#
      • 1...Bf6
        • 2.Sb6#
      • 1...Se4!
    • 1.Qc5+?
      • 1...Sxc5
        • 2.Rd6#
      • 1...Kxe6!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qa2#
      • 1...Kxe6
        • 2.Qa2#
      • 1...Bxe6
        • 2.S6e7#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sa5
        • 2.Rd6#
        • 2.Qxd7#
      • 1...Sc5
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(f);SBLOCK,XR(G)::S(F)
    • S(e);N_GUARD::R1(G)
    • S(e);N_GUARD::R1(G),XS(e)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(F)::QAR1(B)
      • Refutation
        • B(g);XR(G)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • R(h);XS(H)::S(F)
        • B(f);XR(G)::S(F)
        • B(f);XS(H)::S(F)
        • B(g);N_GUARD::QAR1(B),XB(g)
        • R(h);::S(H)
        • B(g);::S(H)
      • Refutation
        • S(a);
    • Try
      • Q(B);CHECK
      • Vars
        • S(e);XQ(B)::R1(G)
      • Refutation
        • K(c);S_FLIGHT,XR(G)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • K(c);S_FLIGHT,XR(G)::QAB(B)
      • B(f);SBLOCK,XR(G)::S(F)
      • S(e);N_GUARD::R1(G),XS(e)
      • S(e);N_GUARD::R1(G)
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